C Class (W205) C 180 BlueTec,C 200 BlueTec,C 220 BlueTec,C 220 BlueTec BlueEfficiency,C 250 BlueTec,C 300 BlueTec Hybridplus,C 180,C 180 BlueEfficiency,C 200,C 250,C 300,C 400 Plug-in Hybrid,C 400

New tire 19 inch

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 06-14-2019, 06:01 AM
  #1  
Junior Member
Thread Starter
 
Mikael10's Avatar
 
Join Date: Apr 2019
Posts: 18
Received 0 Likes on 0 Posts
W205 c220d
New tire 19 inch

Hello,
Just got New tire on my 19 inch rim.
Front rim 8.5
Rear rim 9.5

The new tires are:
Front 235/40/19
Dear 275/30/19

Is that ok ?

I Think the front tire looks very big

Thanks
Old 06-14-2019, 09:01 AM
  #2  
CJG
Senior Member
 
CJG's Avatar
 
Join Date: Jul 2017
Location: Seattle
Posts: 337
Received 44 Likes on 37 Posts
2016 C300 4MATIC
I think it should only be 5 difference. Not 10. As in 35 and 40. Not 30 and 40.
The following 2 users liked this post by CJG:
Mikael10 (06-14-2019), Zayn (06-15-2019)
Old 06-14-2019, 09:23 AM
  #3  
Junior Member
Thread Starter
 
Mikael10's Avatar
 
Join Date: Apr 2019
Posts: 18
Received 0 Likes on 0 Posts
W205 c220d
The wheelshop says is it normal
Old 06-14-2019, 09:38 AM
  #4  
CJG
Senior Member
 
CJG's Avatar
 
Join Date: Jul 2017
Location: Seattle
Posts: 337
Received 44 Likes on 37 Posts
2016 C300 4MATIC
Mercedes says otherwise:
  1. 225/40R19 | 93Y
  2. 255/35R19 | 96Y
If you're so sure why are you even asking?
The following users liked this post:
Zayn (06-15-2019)
Old 06-14-2019, 09:45 AM
  #5  
Junior Member
Thread Starter
 
Mikael10's Avatar
 
Join Date: Apr 2019
Posts: 18
Received 0 Likes on 0 Posts
W205 c220d
Because I do not trust the shop
Old 06-14-2019, 10:05 AM
  #6  
CJG
Senior Member
 
CJG's Avatar
 
Join Date: Jul 2017
Location: Seattle
Posts: 337
Received 44 Likes on 37 Posts
2016 C300 4MATIC
LOL. Then why did you buy them without checking elsewhere first?
Old 06-14-2019, 10:28 AM
  #7  
MBWorld Fanatic!
iTrader: (1)
 
alexasa's Avatar
 
Join Date: Mar 2016
Posts: 3,231
Received 681 Likes on 536 Posts
c
Originally Posted by CJG
I think it should only be 5 difference. Not 10. As in 35 and 40. Not 30 and 40.
also an uninformed response (because that measurement is only a ratio of the width of the tire - so a staggered set-up could easily require a difference in ratio greater than 5).

Tire diameter should be within 3% of stock. You are increasing the front diameter and decreasing the rear. Both are within spec of their respective corners but from front to rear they have greater difference than that 3%

This would not only look weird as hell but could also trip internal sensors and cause issues.

What size wheels? anything 9.5 width and below - just spec a 265/35 for the rear and stay with the front at 235/40

Last edited by alexasa; 06-14-2019 at 10:33 AM.
The following users liked this post:
Mikael10 (06-14-2019)
Old 06-14-2019, 10:42 AM
  #8  
Junior Member
Thread Starter
 
Mikael10's Avatar
 
Join Date: Apr 2019
Posts: 18
Received 0 Likes on 0 Posts
W205 c220d
So the wheelshop has made a mistake ?
Thanks you so much for the help

Originally Posted by alexasa
also an uninformed response (because that measurement is only a ratio of the width of the tire - so a staggered set-up could easily require a difference in ratio greater than 5).

Tire diameter should be within 3% of stock. You are increasing the front diameter and decreasing the rear. Both are within spec of their respective corners but from front to rear they have greater difference than that 3%

This would not only look weird as hell but could also trip internal sensors and cause issues.

What size wheels? anything 9.5 width and below - just spec a 265/35 for the rear and stay with the front at 235/40
Old 06-14-2019, 02:53 PM
  #9  
CJG
Senior Member
 
CJG's Avatar
 
Join Date: Jul 2017
Location: Seattle
Posts: 337
Received 44 Likes on 37 Posts
2016 C300 4MATIC
Originally Posted by alexasa
also an uninformed response (because that measurement is only a ratio of the width of the tire - so a staggered set-up could easily require a difference in ratio greater than 5).

Tire diameter should be within 3% of stock. You are increasing the front diameter and decreasing the rear. Both are within spec of their respective corners but from front to rear they have greater difference than that 3%

This would not only look weird as hell but could also trip internal sensors and cause issues.

What size wheels? anything 9.5 width and below - just spec a 265/35 for the rear and stay with the front at 235/40
Say what? The numbers I listed are the stock tire sizes per Mercedes. I'd say that's informed.
The following users liked this post:
Zayn (06-15-2019)

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: New tire 19 inch



All times are GMT -4. The time now is 05:21 PM.